This is something I've actually been thinking of lately. It's so obvious I'm sure it's already been discussed and theres a valid reason for it not being pursued. However, I'll ask anyway :) > I understand the requirement for the multi-plane graphical chips in a legacy > situation. However, given the move towards GPU accelerated drawing and > compositing, is this still a requirement of the TV/STB hardware ? I've CC'd > the meego-tv list on this question too as I think it's pertinent, especially > with regard to getting dev boards up and running and not having sufficient > drivers available for the CE4100 chipset. > > Could Wayland+GPU not act as the multi-plane compositor now, composing the > resulting TV image of the Picture, OSD etc. ? In theory yes but in the real world they are good motives why multiple plane are here to stay for at least a few years. - multiple plans provides HW composting and scaling with far more energy efficiency that a GPU and that is very important for TV as having a fan in a TV is a NoNo. - multiple plans enable to keep the decrypted - decoded video out o reach from the application CPU reach what is a mandatory requirement in PayTV. GPU do not provide that type of feature. - timing synchronization in a GPU driven composting is still very challenging but needed for OSD (e.g. subtitle).
_______________________________________________ MeeGo-dev mailing list MeeGo-dev@meego.com http://lists.meego.com/listinfo/meego-dev http://wiki.meego.com/Mailing_list_guidelines
